Skipperdoo

Two Heads, One Bullet Kill or incapacitate 2 enemies with the same sniper rifle shot.

Anyway, Here's "Firewall" Activate the Backburner's firewall.

Hoist the Flag In Multiplayer, capture 10 flags in Frontlines

.45 old school Perform 45 kills with the M1911 Handgun in Multiplayer

The First Million is Always the Hardest Have 1,000,000 bolts banked.

Super Boss Defeat a Super Boss Wave in Garden Ops Mode

El Matador No one gets hit by a grove beetle in the Deadgrove.

Expert Creator Complete all levels in the Tutorials

The power of the Force Defeat another hero while playing as any hero on Heroes vs Villains

Teensies' hero Rescue 300 Teensies

Relic Runner Completed a Time Attack stage

Slippery Slope Create a slide

A Moment of Reflection Use only Reflectors to destroy the generators in Phonica Moon's security tunnels. (2P +)

Assassin View Find the Assassin's view.

TLAD: One Percenter Help Billy get his bike back. (The Lost and Damned)

Town Activate the Town laser.

What Does This Switch Do? Ah..... Defeat an opponent using Rhinos.

Kling of the Clink Serve time in Toussaint.

Chain Smoker Disable 50 enemies using smoke grenades.

Air Selfie Take a Selfie on the Paper Plane

Took It to The Limit Reach the maximum level.

King of the Skill Equip and use each skill.

Completed Grounded Mode Plus Completed Grounded Mode Plus

Raising the Stakes Awarded for collecting your first prize at the casino.

Nose for Treasure Found 10 treasure chests.

The Quick and the Dead Kill or incapacitate 50 enemies while time is slowed.

Betrayal Eliminate an enemy with the Dimensional Claw

Scorched Earth Policy Destroy everything in the Zoo Hub.

Baby Boomer Allow the motherships to spawn 40 babies on Dynamite Heights Level 8.

Autojock Buy all vehicles available for purchase.

Into the deep Complete 12 consecutive Waves and escape from the Horde Map "Into the Darkness".

V for Vendetta After reviving with Second Heart, kill or incapacitate the enemy who killed you within 5 seconds.

Bronze Revenge Obtain 24 medals on the original Arkham City ranked maps (as Batman)

I Will Survive Survive your own rampage and then defeat opponent on their rampage.

Fender Bender In Multiplayer, roadkill 5 enemies

My Boom Stick Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)

Kitted Out Fully upgrade a weapon.

Cyra's Last Hope Find the Herbalist's last camp

Got your back Kill 50 enemies that are actively attacking other players.

From Beyond the Stars Collect and return all spaceship parts.

Rollin Defeat an opponent using Pandas.

Smooth Moves Buy 2 Emotes.

Lunch Break Take a sepia photo of a squirrel eating an acorn

Bakugami Learn how to use Cherry Bomb.

She's gonna blow Max out the thermo in Create Mode

Disappearance Complete "A QUIET EXIT" mission.

A Mystery, Solved Solve the mystery of Leonora Johnson.

Spectre of the Seas Discover the ghost ship

The Wedge Completed The Wedge.

Forced Breakthrough Defeated the three Gatekeeper Goblins and cleared Chapter 3-2 without dying